Started with quiche (4)
I believe the answer is:
tart
'quiche' is the definition.
(thesaurus)
'started with' is the wordplay.
'with' says the answer is hidden in the clue.
'TART' is hidden in the letters of 'started'.
(Other definitions for tart that I've seen before include "Sharp tasting- like kind of pie?" , "Sour -- acid" , "Open cake with jam etc" , "Sharp or sour in taste" , "Open-topped pie" .)